Grundfos IO 50 SQFlex User manual

IO 50 SQFlex
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

IO 50 SQFlex
English (GB)
Installation and operating instructions ................6
Български (BG)
Упътване за монтаж и експлоатация...............11
Čeština (CZ)
Montážní a provozní návod ......................16
Deutsch (DE)
Montage- und Betriebsanleitung ...................21
Dansk (DK)
Monterings- og driftsinstruktion ....................26
Eesti (EE)
Paigaldus- ja kasutusjuhend......................31
Español (ES)
Instrucciones de instalación y funcionamiento..........36
Suomi (FI)
Asennus- ja käyttöohjeet ........................41
Français (FR)
Notice d'installation et de fonctionnement.............46
Ελληνικά (GR)
Οδηγίες εγκατάστασης και λειτουργίας...............51
Hrvatski (HR)
Montažne i pogonske upute ......................56
3
Table of contents

Magyar (HU)
Telepítési és üzemeltetési utasítás .................61
Italiano (IT)
Istruzioni di installazione e funzionamento ............66
Lietuviškai (LT)
Įrengimo ir naudojimo instrukcija ...................71
Latviešu (LV)
Uzstādīšanas un ekspluatācijas instrukcija ............76
Nederlands (NL)
Installatie- en bedieningsinstructies .................81
Polski (PL)
Instrukcja montażu i eksploatacji...................86
Português (PT)
Instruções de instalação e funcionamento ............91
Română (RO)
Instrucţiuni de instalare şi utilizare..................96
Srpski (RS)
Uputstvo za instalaciju i rad .....................101
Русский (RU)
Паспорт, Руководство по монтажу и эксплуатации....106
Svenska (SE)
Monterings- och driftsinstruktion ..................111
Slovensko (SI)
Navodila za montažo in obratovanje ...............116
4IO 50 SQFlex
Table of contents

Slovenčina (SK)
Návod na montáž a prevádzku ...................121
Türkçe (TR)
Montaj ve kullanım kılavuzu .....................126
Українська (UA)
Інструкції з монтажу та експлуатації ..............131
中文 (CN)
安装和使用说明书 ............................136
(AR) 
    ...........................141
Appendix A................................146
EU declaration of conformity ...................148
UK declaration of conformity...................153
Moroccan declaration of conformity..............154
Operating manual EAC .......................157
5
Table of contents

English (GB) Installation and operating instructions
Original installation and operating instructions
Table of contents
1. General information ........................... 6
1.1 Hazard statements ............................ 6
1.2 Notes ................................... 7
2. Applications ............................... 8
3. Installation ................................ 8
3.1 Mechanical installation .......................... 8
3.2 Electrical connection ........................... 8
4. Technical data ..............................10
5. Disposing of the product ........................10
1. General information
Read this document before you install the product. Installation and
operation must comply with local regulations and accepted codes of
good practice.
The use of this product requires experience with and knowledge of
the product. Persons with reduced physical, sensory or mental capa-
bilities must not use this product, unless they are under supervision
or have been instructed in the use of the product by a person re-
sponsible for their safety. Children must not use or play with this
product.
1.1 Hazard statements
The symbols and hazard statements below may appear in Grundfos installation
and operating instructions, safety instructions and service instructions.
6
English (GB)

DANGER
Indicates a hazardous situation which, if not avoided, will result in
death or serious personal injury.
WARNING
Indicates a hazardous situation which, if not avoided, could result in
death or serious personal injury.
CAUTION
Indicates a hazardous situation which, if not avoided, could result in
minor or moderate personal injury.
The hazard statements are structured in the following way:
SIGNAL WORD
Description of the hazard
Consequence of ignoring the warning
• Action to avoid the hazard.
1.2 Notes
The symbols and notes below may appear in Grundfos installation and
operating instructions, safety instructions and service instructions.
Observe these instructions for explosion-proof products.
A blue or grey circle with a white graphical symbol indicates that an
action must be taken.
A red or grey circle with a diagonal bar, possibly with a black graphi-
cal symbol, indicates that an action must not be taken or must be
stopped.
7
English (GB)

If these instructions are not observed, it may result in malfunction or
damage to the equipment.
Tips and advice that make the work easier.
2. Applications
The IO 50 SQFlex switch box is made for solar-powered SQFlex systems and
is an on/off switch for the system power supply.
In addition, the IO 50 functions as a connection point for all necessary cables.
By means of the on/off switch, it is possible to
• start/stop the pump
• reset alarms.
The electrical connection and protection must be carried out in accordance with
local regulations.
3. Installation
WARNING
Death or serious personal injury
‐Before starting any work on the IO 50, make sure that the power
supply has been disconnected and that it cannot be accidentally
connected.
3.1 Mechanical installation
The IO 50 SQFlex must be placed on a firm and stable surface that fits the box.
3.2 Electrical connection
The electrical connection must be carried out by an authorised electrician in
accordance with local regulations.
Two typical wiring diagrams are shown in section A.1. Appendix:
• one DC conductor earthed (fig. Wiring diagram, one DC conductor earthed)
8
English (GB)

• floating DC supply or AC connection (fig. Wiring diagram, floating DC
supply or AC connection).
Position of wire jumpers
Wiring Place the wire jumpers between
One DC conductor earthed 1L1 - 3L2 5L3 - 7L4 4T2 - 6T3
Floating DC supply 1L1 - 7L4 3L2 - 5L3 -
Explanation
The jumpers are necessary in order to meet the demands of the circuit breaker
due to the complexity of handling DC currents. This means that contact sets in
series connection are required.
WARNING
Death or serious personal injury
‐Never make any connections in the IO 50 unless the power sup-
ply has been disconnected. The IO 50 must be connected in ac-
cordance with the rules and standards in force for the application
in question.
‐Use appropriate compression fittings to ensure watertight cable
entries.
‐The IO 50 must be earthed.
The DC supply voltage is stated on the nameplate. Make sure that the IO 50 is
suitable for the power supply on which it will be used.
9
English (GB)

4. Technical data
System voltages
• DC: Maximum 300 V, PE.
• AC: Maximum 254 V, 50/60 Hz, PE.
All four relay contacts must be used to meet the rated DC voltage.
See the wiring diagrams in section A.1. Appendix.
Maximum current
16 A.
Ambient temperature
Tamb.: -30 °C to 50 °C.
Enclosure class
IP55 or NEMA 3R.
For EN 60947-3 related technical data, see A.2. Appendix.
5. Disposing of the product
This product or parts of it must be disposed of in an environmentally sound
way.
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest Grundfos company or service
workshop.
See also end-of-life information at www.grundfos.com/product-recycling.
10
English (GB)

Appendix A
A.1. Appendix
Wiring diagram, one DC conductor earthed
1L1
2T1 3L2
4T2 5L3
6T3 7L4
8T4
PE BAR
IO 50
PE PE
1 2
TM045893
Pos. Description
1 Solar Module
2 SQ Flex
Wiring diagram, floating DC supply or AC connection
6T3
1L1
2T1 3L2
4T2 5L3
7L4
8T4
PE PE
PE BAR
IO 50
1 2
~ ~ ~ ~
- -+ +
TM049755
Pos. Description
1Solar Module /
AC Source
2 SQ Flex
146
Appendix A

A.2. Appendix
Technical data
Rated operational current AC-21A (up to 690 V) 16 A
Rated operational current DC-21A (4
poles) (up to 300 V) 16 A
Rated operational power AC-23A (380-415 V, 500 V, 690 V) 7.5 kW
Conventional thermal current fully enclosed 25 A
Rated impulse with voltage 0.5 kV
Rated insulation voltage according to IEC/EN 60664-1 750 V
Rated short-circuit making capacity (690 V AC) 0.705 kA
Rated short-time withstand current for 1 s 0.5 kA
Rated conditional short-circuit current 6.5 kA rms
Pollution degree 3
Standards IEC 60947-1, -3
Number of poles 4
Connecting capacity main circuit screw clamp 0.75-10 mm2
screw clamp / PE terminal 2pcs, 1.5-6
mm2
Cable outlets per side 2 × ø25.5 / 2 × ø25.5
Degree of protection according to IEC 60529 IP65
Impact resistance housing IK09
Tightening torque 0.8 Nm
Dimensions
W x H x L 100 × 161 × 80 mm
Net weight 0.36 kg
147
Appendix A

EU declaration of conformity
GB: EU declaration of conformity
We, Grundfos, declare under our sole responsibility that the product IO 50, to
which the declaration below relates, is in conformity with the Council Directives
listed below on the approximation of the laws of the EU member states.
BG: Декларация за съответствие на EO
Ние, фирма Grundfos, заявяваме с пълна отговорност, че продуктът IO 50,
за който се отнася настоящата декларация, отговаря на следните
директиви на Съвета за уеднаквяване на правните разпоредби на
държавите-членки на ЕO.
CZ: Prohlášení o shodě EU
My firma Grundfos prohlašujeme na svou plnou odpovědnost, že výrobek IO
50, na který se toto prohlášení vztahuje, je v souladu s níže uvedenými
ustanoveními směrnice Rady pro sblížení právních předpisů členských států
Evropského společenství.
DE: EU-Konformitätserklärung
Wir, Grundfos, erklären in alleiniger Verantwortung, dass das Produkt IO 50,
auf das sich diese Erklärung bezieht, mit den folgenden Richtlinien des Rates
zur Angleichung der Rechtsvorschriften der EU-Mitgliedsstaaten
übereinstimmt.
DK: EU-overensstemmelseserklæring
Vi, Grundfos, erklærer under ansvar at produktet IO 50 som erklæringen
nedenfor omhandler, er i overensstemmelse med Rådets direktiver der er
nævnt nedenfor, om indbyrdes tilnærmelse til EU-medlemsstaternes lovgivning.
EE: EÜvastavusdeklaratsioon
Meie, Grundfos, kinnitame ja kanname ainuisikulist vastutust selle eest, et
toode IO 50, mille kohta all olev deklaratsioon käib, on kooskõlas Nõukogu
Direktiividega, mis on nimetatud all pool vastavalt vastuvõetud õigusaktidele
ühtlustamise kohta EÜ liikmesriikides.
ES: Declaración de conformidad de la UE
Grundfos declara, bajo su exclusiva responsabilidad, que el producto IO 50 al
que hace referencia la siguiente declaración cumple lo establecido por las
siguientes Directivas del Consejo sobre la aproximación de las legislaciones de
los Estados miembros de la UE.
148
EU declaration of conformity

FI: EU-vaatimustenmukaisuusvakuutus
Grundfos vakuuttaa omalla vastuullaan, että tuote IO 50, jota tämä vakuutus
koskee, on EU:n jäsenvaltioiden lainsäädännön lähentämiseen tähtäävien
Euroopan neuvoston direktiivien vaatimusten mukainen seuraavasti.
FR: Déclaration de conformité UE
Nous, Grundfos, déclarons sous notre seule responsabilité, que le produit IO
50, auquel se réfère cette déclaration, est conforme aux Directives du Conseil
concernant le rapprochement des législations des États membres UE relatives
aux normes énoncées ci-dessous.
GR: Δήλωση συμμόρφωσης ΕΕ
Εμείς, η Grundfos, δηλώνουμε με αποκλειστικά δική μας ευθύνη ότι το προϊόν
IO 50, στο οποίο αναφέρεται η παρακάτω δήλωση, συμμορφώνεται με τις
παρακάτω Οδηγίες του Συμβουλίου περί προσέγγισης των νομοθεσιών των
κρατών μελών της ΕΕ.
HR: EU deklaracija sukladnosti
Mi, Grundfos, izjavljujemo s punom odgovornošću da je proizvod IO 50, na koja
se izjava odnosi u nastavku, u skladu s dolje navedenim direktivama Vijeća o
usklađivanju zakona država članica EU-a.
HU: EU megfelelőségi nyilatkozat
Mi, a Grundfos vállalat, teljes felelősséggel kijelentjük, hogy a(z) IO 50 termék,
amelyre az alábbi nyilatkozat vonatkozik, megfelel az Európai Unió
tagállamainak jogi irányelveit összehangoló tanács alábbi előírásainak.
IT: Dichiarazione di conformità UE
Grundfos dichiara sotto la sua esclusiva responsabilità che il prodotto IO 50, al
quale si riferisce questa dichiarazione, è conforme alle seguenti direttive del
Consiglio riguardanti il riavvicinamento delle legislazioni degli Stati membri UE.
LT: ES atitikties deklaracija
Mes, Grundfos, su visa atsakomybe pareiškiame, kad produktas IO 50, kuriam
skirta ši deklaracija, atitinka žemiau nurodytas Tarybos Direktyvas dėl ES šalių
narių įstatymų suderinimo.
LV: ES atbilstības deklarācija
Sabiedrība Grundfos ar pilnu atbildību paziņo, ka produkts IO 50, uz kuru
attiecas tālāk redzamā deklarācija, atbilst tālāk norādītajām Padomes
direktīvām par ES dalībvalstu normatīvo aktu tuvināšanu.
149
EU declaration of conformity

NL: EU-conformiteitsverklaring
Wij, Grundfos, verklaren geheel onder eigen verantwoordelijkheid dat product
IO 50, waarop de onderstaande verklaring betrekking heeft, in
overeenstemming is met de onderstaande Richtlijnen van de Raad inzake de
onderlinge aanpassing van de wetgeving van de EU-lidstaten.
PL: Deklaracja zgodności UE
My, Grundfos, oświadczamy z pełną odpowiedzialnością, że nasz produkt IO
50, którego deklaracja niniejsza dotyczy, jest zgodny z następującymi
dyrektywami Rady w sprawie zbliżenia przepisów prawnych państw
członkowskich.
PT: Declaração de conformidade UE
A Grundfos declara sob sua única responsabilidade que o produto IO 50, ao
qual diz respeito a declaração abaixo, está em conformidade com as Directivas
do Conselho sobre a aproximação das legislações dos Estados Membros da
UE.
RO: Declaraţia de conformitate UE
Noi Grundfos declarăm pe propria răspundere că produsul IO 50, la care se
referă această declaraţie, este în conformitate cu Directivele de Consiliu
specificate mai jos privind armonizarea legilor statelor membre UE.
RS: Deklaracija o usklađenosti EU
Mi, kompanija Grundfos, izjavljujemo pod punom vlastitom odgovornošću da je
proizvod IO 50, na koji se odnosi deklaracija ispod, u skladu sa dole prikazanim
direktivama Saveta za usklađivanje zakona država članica EU.
RU: Декларация о соответствии нормам ЕС
Мы, компания Grundfos, со всей ответственностью заявляем, что изделие
IO 50, к которому относится нижеприведённая декларация, соответствует
нижеприведённым Директивам Совета Евросоюза о тождественности
законов стран-членов ЕС.
SE: EU-försäkran om överensstämmelse
Vi, Grundfos, försäkrar under ansvar att produkten IO 50, som omfattas av
nedanstående försäkran, är i överensstämmelse med de rådsdirektiv om
inbördes närmande till EU-medlemsstaternas lagstiftning som listas nedan.
150
EU declaration of conformity

SI: Izjava o skladnosti EU
V Grundfosu s polno odgovornostjo izjavljamo, da je izdelek IO 50,na katerega
se spodnja izjava nanaša, v skladu s spodnjimi direktivami Sveta o
približevanju zakonodaje za izenačevanje pravnih predpisov držav članic EU.
SK: ES vyhlásenie o zhode
My, spoločnosť Grundfos, vyhlasujeme na svoju plnú zodpovednosť, že produkt
IO 50, na ktorý sa vyhlásenie uvedené nižšie vzťahuje, je v súlade s
ustanoveniami nižšie uvedených smerníc Rady pre zblíženie právnych
predpisov členských štátov EÚ.
TR: AB uygunluk 
Grundfos olarak,   konusu olan IO 50  AB üye
  yakınlaştırılmasıyla  durumun  Konsey
 uyumlu olduğunu ve bununla  olarak tüm sorumluluğun 
 olduğunu beyan 
UA: Декларація відповідності директивам EU
Ми, компанія Grundfos, під нашу одноосібну відповідальність заявляємо,
що виріб IO 50, до якого відноситься нижченаведена декларація,
відповідає директивам EU, переліченим нижче, щодо тотожності законів
країн-членів ЄС.
CN: 欧盟符合性声明
我们，格兰富，在我们的全权责任下声明，产品 IO 50 系列，其制造和性能完全
符合以下所列欧盟委员会指令。
AR :   ) EU(
        IO 50      
            ) EU.(
• Low Voltage Directive (2014/35/EU)
Standards used:
EN 60947-3:2009 + A1:2012 + A2:2015
• EMC Directive (2014/30/EU)
Standards used:
EN 60947-3:2009 + A1:2012
• RoHS Directives: (2011/65/EU and 2015/863/EU)
Standard used:
EN IEC 63000:2018
151
EU declaration of conformity

This EU declaration of conformity is only valid when published as part of the
Grundfos installation and operating instructions (publication
number 97823192).
Bjerringbro, 6th October 2021
Jan Lyngholm
Technical Product Owner, Water Utility
Grundfos Holding A/S
Poul Due Jensens Vej 7
8850 Bjerringbro, Denmark
Manufacturer, person authorised to compile technical file and empowered to
sign the EU declaration of conformity.
152
EU declaration of conformity

UK declaration of conformity
UK declaration of conformity
We, Grundfos, declare under our sole responsibility that the products to which
the declaration below relates, are in conformity with UK regulations, standards
and specifications to which conformity is declared, as listed below:
Valid for Grundfos products:
IO 50
• Electrical Equipment (Safety) Regulations 2016
Standards used:
EN 60947-3:2009 + A1:2012 + A2:2015
• Electromagnetic Compatibility Regulations 2016
Standards used:
EN 60947-3:2009 + A1:2012
• The Restriction of the Use of Certain Hazardous Substances in Electrical
and Electronic Equipment Regulations 2012
Standard used:
EN IEC 63000:2018
This UK declaration of conformity is only valid when accompanying Grundfos
instructions.
Bjerringbro, 6th October 2021
Jan Lyngholm
Technical Product Owner, Water Utility
Grundfos Holding A/S
Poul Due Jensens Vej 7
8850 Bjerringbro, Denmark
Manufacturer and person empowered to sign the UK declaration of conformity.
10000383495
153
UK declaration of conformity

Moroccan declaration of conformity
GB: Moroccan declaration of conformity
We, Grundfos, declare under our sole responsibility that the products to which
the declaration below relates, are in conformity with Moroccan laws, orders,
standards and specifications to which conformity is declared, as listed below:
Valid for Grundfos products:
IO 50
Law No 24-09, 2011 Safety of products and services and the following orders:
Order No 2573-14, 2015 Safety Requirements for Low Voltage Electrical
Equipment
Standards used: NM EN 60947-3:2014
Order No 2574-14, 2015 Electromagnetic Compatibility
Standards used: NM EN 60947-3:2014
This Moroccan declaration of conformity is only valid when accompanying
Grundfos instructions.
154
Moroccan declaration of conformity

FR: Déclaration de conformité marocaine
Nous, Grundfos, déclarons sous notre seule responsabilité que les produits
auxquels se réfère cette déclaration, sont conformes aux lois, ordonnances,
normes et spécifications marocaines pour lesquelles la conformité est déclarée,
comme indiqué ci-dessous :
Valable pour les produits Grundfos :
IO 50
Sécurité des produits et services, loi n° 24-09, 2011 et décrets suivants :
Exigences de sécurité pour les équipements électriques basse tension,
ordonnance n° 2573-14, 2015
Normes utilisées : NM EN 60947-3:2014
Compatibilité électromagnétique, ordonnance n° 2574-14, 2015
Normes utilisées : NM EN 60947-3:2014
Cette déclaration de conformité marocaine est uniquement valide lorsqu'elle
accompagne la notice d'installation et de fonctionnement Grundfos.
AR :  
               
            :

   :
IO 50
  24-09 2011      :
  2573-14 2015       
 :NM EN 60947-3:2014
  2574-14 2015  
 : NM EN 60947-3:2014
           .
155
Moroccan declaration of conformity